Social Media Day is on Wednesday, June 30, 2027, and it falls on June 30 every year. It celebrates how social platforms have changed the way people connect, share news and build communities. It’s also a good moment to think about how we use them.
When Is Social Media Day?
It’s always June 30. It’s an unofficial observance, not a federal holiday. It’s sometimes called World Social Media Day, and people mark it online with the hashtag #SMDay.
Who Started Social Media Day?
The tech and culture site Mashable launched the idea in 2010. It announced the plan in a post dated June 8, 2010, and named June 30 as the date.
Mashable’s case was simple: “Social media has changed our lives.” It invited fans to meet up in person to celebrate the online world.
The response was big for a first year. Meetup listed 563 events, blogger Des Walsh reported at the time. New York City led with 415 people signed up, followed by Antwerp, Barcelona, Atlanta and Boston.
Some events had only one person signed up, Walsh noted. Still, the meetups showed how quickly the idea spread. The day has returned every June 30 since.
How Americans use social media today
Pew Research Center surveyed 5,022 U.S. adults from February to June 2025. Here’s the share who say they ever use each platform:
- YouTube: 84%
- Facebook: 71%
- Instagram: 50%
- TikTok: 37%
- WhatsApp: 32%
- Reddit: 26%
Age makes a big difference. About 80% of adults ages 18 to 29 use Instagram, compared with 19% of those 65 and older. Roughly half of all U.S. adults visit YouTube or Facebook daily.
Some people check in constantly. About 37% of U.S. adults visit Facebook several times a day, and 33% do the same with YouTube. Among adults under 30, about half use TikTok every day, compared with 5% of those 65 and older.
Why the Day Matters
Social media has reshaped news, business, politics and friendship. It lets small shops reach customers, families stay in touch across oceans and causes gain support quickly.
It also brings real challenges, from misinformation to screen-time worries. The day is a chance to celebrate the good and take stock of your own habits.
How to Celebrate Social Media Day
- Thank a creator: leave a kind comment for someone whose posts you enjoy.
- Clean up your feed: unfollow accounts that make you feel worse and follow ones that teach or inspire you.
- Check your privacy: review who can see your posts and what apps can access.
- Share a throwback: post your first-ever profile photo or oldest post.
- Meet offline: in the spirit of 2010, meet an online friend in person.
- Fact-check first: verify a news story before you share it.
- Try a break: set a screen-time limit for the evening and notice how it feels.
Frequently Asked Questions
Is it the same as World Social Media Day?
Yes. Both names refer to the June 30 observance that Mashable started in 2010.
What is the most used social media platform in the U.S.?
YouTube. In Pew’s 2025 survey, 84% of U.S. adults said they use it, followed by Facebook at 71%.
Which age group uses Instagram most?
Younger adults. Pew found about 80% of U.S. adults ages 18 to 29 use Instagram, compared with 19% of adults 65 and older.
What hashtag is used for the day?
The most common is #SMDay. Many people also use #SocialMediaDay when posting.